Platform
ruby
Component
rails
Fixed in
1.1.6
CVE-2006-4111 describes a remote code execution (RCE) vulnerability in Ruby on Rails versions 1.1.5 and earlier. This flaw allows attackers to inject and execute arbitrary Ruby code through a manipulated File Upload request, potentially leading to complete system compromise. The vulnerability affects applications utilizing Ruby on Rails and has been resolved in version 1.1.6.
The impact of CVE-2006-4111 is severe, enabling an attacker to execute arbitrary code on the server hosting the Ruby on Rails application. This could lead to complete system takeover, data exfiltration, and the deployment of malicious payloads. An attacker could potentially modify application files, steal sensitive data (including database credentials), or use the compromised server as a launchpad for further attacks against internal networks. While this CVE is relatively old, legacy applications still using vulnerable versions of Rails remain at risk.
CVE-2006-4111 was publicly disclosed in 2006, but its re-emergence in recent vulnerability databases highlights the persistence of legacy systems. While no active exploitation campaigns are currently known, the vulnerability's ease of exploitation makes it a potential target. Public proof-of-concept exploits are available, increasing the risk of opportunistic attacks. It was published on 2017-10-24.
Exploit Status
EPSS
3.98% (88% percentile)
The primary mitigation for CVE-2006-4111 is to upgrade to Ruby on Rails version 1.1.6 or later, which includes the fix. If upgrading is not immediately feasible, consider implementing strict input validation on file upload requests to prevent manipulation of the LOAD_PATH variable. Web application firewalls (WAFs) can be configured to block requests containing suspicious patterns in the HTTP headers related to file uploads. Thoroughly review and sanitize all user-supplied input to prevent code injection vulnerabilities.
No official patch available. Check for workarounds or monitor for updates.
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CVE-2006-4111 is a remote code execution vulnerability affecting Ruby on Rails versions 1.1.5 and earlier. Attackers can execute arbitrary Ruby code via a manipulated file upload request.
You are affected if you are using Ruby on Rails version 1.1.5 or earlier. Upgrade to version 1.1.6 or later to resolve the vulnerability.
Upgrade to Ruby on Rails version 1.1.6 or later. As a temporary workaround, implement strict input validation on file upload requests.
While no active campaigns are currently known, the vulnerability's ease of exploitation makes it a potential target for opportunistic attacks.
Due to the age of this CVE, a dedicated advisory may be difficult to find. Consult the Ruby on Rails security mailing list archives and general security resources for more information.
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